Category Archives: Gravity

Scotland’s Quiet Revolutions – One Nation with Sovereign Achievements… and a Pure Dead Brilliant Future!

A photograph of the countryside north of Glasgow - sheep grazing. Image: NaturPhilosophie

Scotland’s Quiet Revolutions

It seems quiet at first, and even dull.  Not much happening…  Dreich, as one might say!  Sad.  Grim.  Bleak.  Not much to do…  Not much to see here…  Just sheep…  But wait!!  Look closer!  Is that Dolly in this field?  Now, that’s interesting!  Oh, Aye, we’re in Scotland!  It changes EVERYTHING… 

Continue reading Scotland’s Quiet Revolutions – One Nation with Sovereign Achievements… and a Pure Dead Brilliant Future!

The Craic about “Fracking” – Technical Facts on Hydraulic Fracturing

A photograph illustrating the phenomenon of natural hydraulic fracturing or 'fracking'.
The Industry Term is ‘Fracturing’

Hydraulic fracturing, more commonly referred to as “fracking” in the media, is the fracturing of rock by a pressurised liquid.  Some hydraulic fractures form naturally – certain veins or dikes are examples.  However, induced hydraulic fracturing or hydro-fracturing is also a long tried-and-tested mining technique that has been most controversial recently…  But let’s not panic! 

Continue reading The Craic about “Fracking” – Technical Facts on Hydraulic Fracturing

Eroded Earth: The Forge of Gravity

A beautiful photograph showing rock arches at National Park - Mesa Arch starburst panorama.
Gravity-Defying Lanscapes

Over millions of years, weathering and erosion of sandstone have produced unique landforms, such as arches, alcoves, pedestals and pillars.  Until now, the natural process remained a mystery.  It was difficult to study, because of the huge time-scales involved in the erosion of natural slabs of sandstone.  Gravity-induced stresses had been assumed not to play any role in landform preservation.  Instead gravity was thought to increase the rates of weathering and natural erosion…  

Continue reading Eroded Earth: The Forge of Gravity

Satellite of Love – It’s Up, Up and Away for Scotland’s UKube-1

An artist's impression of the new Scotland UKube-1 micro-satellite in orbit around Earth.
Scotland’s First Nano-Satellite

Earlier this month, UKube-1, a satellite built by Glasgow-based technology firm Clyde Space, successfully launched on a test flight from Baikonur, Kazakhstan.  It is the first ever spacecraft to be fully assembled in Scotland.

Continue reading Satellite of Love – It’s Up, Up and Away for Scotland’s UKube-1

Rise of the Exoskeletons – Get Up… and Kick-Off!

An artist's impression of one of the ground-breaking medical event due to take place at the Sao Paulo, Brazil 2014 Footbal World Cup opening ceremony. Image: Walk Again Project
Mind Controlled Exoskeleton Demonstration at 2014 World Cup Opening Ceremony

On 12 June at Arena Corinthians in São Paulo, shortly before 5pm local time, a young paraplegic Brazilian youth will stand up from a wheelchair… walk over to midfield… and take a kick in the opening ceremony of the 2014 World Cup in Brazil! 

Continue reading Rise of the Exoskeletons – Get Up… and Kick-Off!

Helium – Lighter than Air

A photograph showing a bunch of Helium red party balloons on strings over a sunny blue sky background.
More Than Just Party Balloons…

Helium is the second most abundant element in the Universe, after hydrogen.  On Earth, helium is relatively rare, because it is one of the few elements that can escape gravity and leak away into space.  Therefore, helium exists as a finite resource.  But as our reserves of the precious element steadily decreases, helium is in increasing demand.  In medicine, helium supports the fight against cancer… 

Continue reading Helium – Lighter than Air

Up Archimedes! – The Principle of Buoyancy

A photograph showing a huge mass of helium balloons carrying their human payload up into the sunset sky. Image: Jonathan Frappe
Archimedes’ Principle and Helium Balloons

Buoyancy is the upward force exerted by a fluid that opposes the weight of an object immersed in a particular substance.  Essentially, this is what Archimedes (c.287212 BC) observed when he stated that:

Continue reading Up Archimedes! – The Principle of Buoyancy

Fibonacci’s Golden Spiral – The Relationship between Maths and Nature

A close-up photograph of a cross section through a Nautilus shell showing that the Fibonacci sequence can be found everywhere in Nature.
The Language of Nature

They are found everywhere in Nature.  From the leaf arrangement in plants, to the pattern of the petals of a flower, the bracts of a pine cone, or the scales of a pineapple.  The Fibonacci numbers are applicable to the growth of every living thing: a single cell, a grain of wheat, a hive of bees, all of mankind.  From sunflowers to sea shells, the same recurrent mathematical pattern can be observed in Nature, again, and again, and again… 

Continue reading Fibonacci’s Golden Spiral – The Relationship between Maths and Nature

We Delve into Time-of-Flight Mass Spectrometry Forensics!

A photograph showing latent fingerprints under the magnifier, enhanced using a large electrical potential. Source: RSC
Sleuthing with Time-of-Flight Mass Spectrometry

Time-of-Flight Mass Spectrometry is a technique for separating ions of different masses by measuring the time taken to traverse a fixed distance through a magnetic field.  Sounds a bit arcane?  The technique is used daily by forensic investigative teams to research criminal profiling and provide reliable evidence for the prosecution… 

Continue reading We Delve into Time-of-Flight Mass Spectrometry Forensics!

Meanwhile Major Tim has been Training for Space in Cologne, Germany…

A photograph showing Timothy Peake EVA Training at ESA's Neutral Buoyancy Facility at the European Astronaut Centre in Cologne, Germany.
Space Training in Kölnisch Waters

Major Timothy Peake has been training for space underwater in Germany to prepare for work in zero gravity.  The British astronaut who is set to go into space next year said that learning how to live and work in space will be essential to the future survival of our species. 

Continue reading Meanwhile Major Tim has been Training for Space in Cologne, Germany…